Results 81 to 90 of about 35,108 (280)

Ir(III) Metal Emitters with Cyano‐Modified Imidazo[4,5‐b]pyridin‐2‐ylidene Chelates for Deep‐Blue Organic Light‐Emitting Diodes

open access: yesAdvanced Science
Ir(III) carbene complexes have been explored as one of the best blue phosphors for their high performance. Herein, the authors designed and synthesized a series of blue‐emitting Ir(III) phosphors (f‐ct9a–c), featuring fac‐coordinated cyano‐imidazo[4,5‐b ...
Yixin Wu   +7 more
doaj   +1 more source

An Electrochemical Study of Key Catalytically Active Gold Complexes

open access: yesAngewandte Chemie, EarlyView.
A systematic electrochemical investigation of Au(I) complexes sheds light on how ligand environments control gold oxidizability. Through cyclic voltammetry and density functional theory (DFT) analysis, key trends are established for phosphine, N‐heterocyclic carbene (NHC), and hemilabile P^N ligands, offering valuable insights into the design of ...
Emma Baubiat   +4 more
wiley   +2 more sources

A laterally-fused N-heterocyclic carbene framework from polysubstituted aminoimidazo[5,1-b]oxazol-6-ium salts

open access: yesBeilstein Journal of Organic Chemistry
A polysubstituted 3-aminoimidazo[5,1-b]oxazol-6-ium framework has been accessed from a new nitrenoid reagent by a two-step ynamide annulation and imidazolium ring-formation sequence. Metalation with Au(I), Cu(I) and Ir(I) at the C2 position provides an L-
Andrew D. Gillie   +4 more
doaj   +1 more source

A theoretical study of the mechanism of the addition reaction between carbene and azacyclopropane [PDF]

open access: yesJournal of the Serbian Chemical Society, 2010
The mechanism of the addition reaction between carbene and azacyclopropane was investigated using the second-order Moller–Plesset perturbation theory (MP2).
XIAOJUN TAN   +4 more
doaj  

Gold(I)-catalyzed synthesis of γ-vinylbutyrolactones by intramolecular oxaallylic alkylation with alcohols

open access: yesBeilstein Journal of Organic Chemistry, 2011
Gold(I)-N-heterocyclic carbene (NHC) complexes proved to be a reliable catalytic system for the direct synthesis of functionalized γ-vinylbutyrolactones by intramolecular oxaallylic alkylation with primary alcohols.
Michel Chiarucci   +3 more
doaj   +1 more source

The Overlooked Dual Phosphorescence of Lappert's Diamino Stannylene Sn[N(SiMe3)2]2

open access: yesAngewandte Chemie, EarlyView.
The diamino stannylene Sn[N(SiMe3)2]2 shows rich photophysics and photochemistry: unprecedented dual green/orange phosphorescence with long excited state lifetimes, excimer formation, and unimolecular bond homolysis. Photolytic Sn─N bond homolysis occurs only in the long‐lived excited monomer but not in the excimer.
Philipp Sikora   +4 more
wiley   +2 more sources

Theoretical Study for Stabilizing Group 14 Elements by Five Different Carbene Ligands as L-E-E-L Complexes

open access: yesAl-Mustansiriyah Journal of Science
Background: The computational calculations have been employed as a great tool to understand the stabilization of main group species by carbene ligands, which have been recognized as excellent compounds for coordinating highly reactive main-group ...
Khalidah H. M. AL FURAIJI   +1 more
doaj   +1 more source

Trigonal Planar Bis(carbene)Cu(I) Complexes Enable Divergent H2 Activation with H2O for Accelerated Olefin Hydrogenation

open access: yesAngewandte Chemie, EarlyView.
Trigonal planar naphthyridine‐bis(carbene)Cu(I) alkyl, hydroxide, and ethoxide complexes promote a divergent mechanism of H2 activation for the rare catalytic hydrogenation of unactivated alkenes at mild conditions at copper. Abstract CuH‐catalyzed olefin hydrogenation is rare compared to those of carbonyl‐derived substrates. Olefin insertion into Cu–H
Evan A. Patrick   +6 more
wiley   +2 more sources

Übergangsmetall-Carben-Komplexe, CVIII1 µ-Methyliden-Komplexe des Rheniums / Transition Metal Carbene Complexes, CVIII1 µ-Methylidene Complexes of Rhenium [PDF]

open access: hybrid, 1977
Ernst Otto Fischer   +5 more
openalex   +1 more source

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